Hollywood Sound Labs Excursion 1580D
www.hollywoodsoundlabs.com
Hollywood Sound offers a sub designed to shake seats and annoy neighbors.
by Brian Smith
The 1580D is a 15-inch DVC subwoofer that was delivered for testing in a sealed enclosure with an internal volume of about 2.5 cubic feet. Features include a stamped basket, 80-ounce magnet, composite Kevlar paper pulp cone with Double Wide Surround, 2-inch Kapton Polyimide voice coil formers, and an extended and vented pole piece. It also boasts Hollywood Sound’s MAFOS low-carbon backplate and DWS, as well as a two-year warranty.

Subjective
The 1580D seems to be a woofer of the “makin’ much noise” variety. Sound quality left a bit to be desired on most of our hi-fi collection. My favorite stand-up bass sounded a touch boomy, with a note or two that stuck out farther than the rest. Upper octave transients also seem somewhat soft, leaving well-recorded kick drums and other percussion instruments sounding a touch thin. Of course, a big heavy woofer such as this would benefit from a good set of midbass drivers and a low crossover point like 50 or 60 Hz. This alone would probably cure the concerns listed above. We always use a crossover point of 80 Hz for a sub under review because that’s as high as we’d ever recommend going. Beyond that, you’ll start to localize the subwoofer, ruining the bass-up-front illusion.

On the wicked pipe organ tracks, the 1580D produced an impressive amount of output, but it does seem to compress rather quickly if you grab the volume control and go for more. It does retain a fair amount of composure well beyond the point of diminishing returns though. Sure, the level of distortion increases as you progressively hammer the thing, but the sub seems to be free of those annoying chuffing and clicking noises that you often hear at the limit with a big pipe organ.

However, in the big picture, this woofer seems to be more about scaring small children and their grandparents than the finer points of esoteric jazz and classical reproduction. It definitely excels at playing music that’s designed to shake your innards around. Heavy boom or hip-hop tracks are just that — heavy. Electric basses and rock-style kick drums also very meaty. To sum it up, this is not the sub that your neighbors would pick. They’d prefer that you just turn the page and stick with those ratty OEM 5x7s, thank you very much. So we should all just follow their advice (wink, wink) because I know that none of you guys out there would want to (nudge, nudge) annoy anyone. OOOOWAHAHAHAHAHAHA!!!!

Objective
The 1580D was delivered with each 4-ohm voice coil wired to a separate banana connector. All subjective and objective evaluations were performed with a short jumper paralleling the coils for a rated impedance of 2 ohms.

Impedance measurements on the 1580D show a maximum of 27 ohms at 49 Hz and a minimum of 2.3 ohms at 20 Hz. Average impedance measured 5 ohms. Out-of-car measurements show a rise of about 3 dB below 100 Hz followed by a 12 dB per octave roll-off below system resonance. In-car measurements show a 1-watt sensitivity that averages 101 dB between 10 Hz and 50 Hz. Overall system response at 1-watt fits within a window of about 5 dB. In-car power response sweeps reveal about 4 dB of power compression at 300 W and about 7 dB of compression at 1 kW. Maximum SPL at 1 kW measured 129.7 dB at 46 Hz.

Price & Contact: $189.95, 626-301-7828, www.hollywoodsoundlabs.com